October 10, 1937 - Flight from Arequipa to Tacna, Peru. Serial obliques taken from 13,500' altitude, bearing 275 deg. M, airspeed 145 m.p.h.; pictures made every 70 seconds. Take-off made from Arequipa at 1:55 p.m.and landing at 1:55 p.m. and landing at Tacna at 3:40. First picture taken in Arequipa Valley, and series continues through no. 28.